28235111 has 2 divisors, whose sum is σ = 28235112. Its totient is φ = 28235110.

The previous prime is 28235087. The next prime is 28235149. The reversal of 28235111 is 11153282.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28235111 - 2¹⁴ = 28218727 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28235171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14117555 + 14117556.

It is an arithmetic number, because the mean of its divisors is an integer number (14117556).

Almost surely, 2^28235111 is an apocalyptic number.

28235111 is a deficient number, since it is larger than the sum of its proper divisors (1).

28235111 is an equidigital number, since it uses as much as digits as its factorization.

28235111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 480, while the sum is 23.

The square root of 28235111 is about 5313.6720824680. The cubic root of 28235111 is about 304.5064525170.

Adding to 28235111 its reverse (11153282), we get a palindrome (39388393).

The spelling of 28235111 in words is "twenty-eight million, two hundred thirty-five thousand, one hundred eleven".